Collapsible tube closure



Nov. 12, 1946. J. c. ROCKWELL COLLAPSIBLE TUBE CLOSURE Filed Jan. 1'7,1944 X MI/ff I Inventor r/o/m/ 6 ,474 w/v, Foam EL L By M m ear/paws; 15M3 ing a threaded socket 9.

Patented Nov. 12, 1946 UNITED STATES PATENT OFFICE COLLAPSIBLE TUBECLOSURE John Calvin Rockwell, Mobile, Ala.

Application January 17, 1944, Serial No. 518,605

1 Claim.

This invention relates to new and useful improvements in closures forcollapsible tubes, the

principal object being to provide a device which can be readily appliedto any conventional collapsible tube, to the end that a closure will beprovided that will always keep the contents of the tube substantiallyair-tight and a closure which will not have to be disconnected from thetube in order to permit dispensing of the contents of the tube.

Other objects and advantages of the invention will become apparent tothe reader of the following description.

In the drawing:

Figure 1 represents a fragmentary side elevational View of a tubeshowing the closure.

Figure 2 is a fragmentary side elevational View showing the improvedclosure in vertical section.

Figure 3 is a cross section taken substantially on the line 33 of Figure4.

Figure 4 is a fragmentary sectional view taken substantially on the line44 of Figure 1.

Referring to the drawing wherein like numerals designate like parts, itcan be seen that numeral 5 denotes a collapsible tube having a threadedneck 6. Numeral 1 generally refers to the improved closure.

The improved closure consists of a body 8 hav- The body 8 has anupstanding portion Ill provided with flat side portions H, II and arounded front portion l2. The back portion of the upstanding portion IIIhas a vertically extending channel [3 and across this is disposed a pin[4 which extends into the side portions of a channeled cap [5. A springI! is located on the pin 14 and serves to normally maintain the cap I5urged upwardly to an opened position, as shown in dotted lines in Figure4. A

packing disk I8 is provided in a pocket IQ of the cap 15 and into thisprojects a beveled nipple 20 located at the upper end ofthe upstandingportion [0.

A hollow plug 2| is threadedly disposed into the depending portion ofthe cap l5 and contains a spring 22 which serves to urge a ball 23 intoa recess in the front side l2 of the upstanding portion ID, thus holdingthe cap in closed position.

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

A closure adapter comprising a body having a threaded socket forreceiving the threaded neck of a collapsible tube and having a dischargeopening, a closure for said discharge opening, a hinge pivoting saidclosure to said body, detent means for securing said closure in closedposition, said discharge opening consisting of an upstanding porton ofsaid body and defining a nipple, and recess means in said closure forreceiving, seating and closing said nipple, said closure having an upperportion entirely surrounding the upper periphery of said nipple and alower portion, U.- shaped in cross section, which is cut away on thehinged side of the closure to embrace the lower portion of said nippleand said base on three sides thereof, said base being cut away withinthe cut away portion of said closure, said hinge means engaging saidclosure and said base and positioned in said cut away portions.

JOHN CALVIN ROCKWELL.

